rod

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Introduction References & Edit History Related Topics

Images

photoreceptor; rod and cone

structure of the retina

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Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

Shah Jahan. Taj Mahal. Mughal architecture. Emperor Shah Jahan fifth Mughal Emperor (reigned 1628-1658) India, Himachal Pradesh, Basohli or Jammu and Kashmir, Mankot, circa 1690 Drawings; Opaque watercolor, gold, and ink on paper (see notes)

6 Important Mughal Emperors

Candles Burning On Table In Church

What Is the Most Widely Practiced Religion in the World?

Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

rod: Related Content

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Photos

photoreceptor; rod and cone

structure of the retina

See All Images →

Topics

scotopsin rhodopsin porphyropsin metarhodopsin prelumirhodopsin lumirhodopsin retina neuroepithelium blind spot macula lutea cone

Key People

George Wald

American biochemist